Roller-bearing with roll-separators.



c. s. LOOKWOOD, ROLLER BEARING WITH ROLL SEPARATORS. APPLICATION FILED MAY 23, 1912. RENEWED 001224, 1913.

Patented Dec. 2, 1913.

UFFTQE.

CHARLES S. LOCKWOO JD, F NEWARK, NEW JERSEY, ASSIGNOLR T0 HYAT'I ROLLER- BEARING COMPANY, OF HARIRISGN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

R;OLLER'BEAEBHTG WITH ROLL-SEPARATOBS.

Specification of Letters Patent.

possess.

Patented Dec. 2, 11913..

Application filed May23, 1912, Serial No. 699,101. Renewed October 24, 1913. Serial No. 797,098.

" sections fitted-to the hub at opposite sides of the rib.

In the present invention, the roll-sections are carried upon pins withheads at their opposite ends which hold the sections of each roll contiguous to the rib so that the rib prevents end movement upon the hub.

The invention consists of a particular construction for the hub, the casing, the rolls, and spacers for the rolls upon the hub, con- 1 sisting of separate U-shaped sheet-metal sepa raters fitted between the rolls, and preferably formed of elastic metal so as to contact elastically with the rolls and hold them from lost motion in the casing.

The rolls may be made integral with the pin or spindle it the casing be made cylindrical from end to end, as such rolls can be assembled upon the hub with the separators, and the casing then slipped over the whole. A ring is preferably fitted between the rollsections adjacent to the casing, and' may be made integral with the casing or separate therefrom. The separators are notched transversely to fit the rib upon the hub and the ring next the casing, such rib and ring serving to guide the rolls and separators in their movements, and a loose ring, if one be used, s rving to hold the assembled rolls and separat rs uponthe hub before the casing is applied. There the ring is made integral with the casing, the roll-sections are fitted loosely upon a pin or spindle having a head upon one end only, and an additional head or collar secured upon the other end after the roll-sections are applied to the hub and easing at opposite sides of the rib. In such construction, the separators can only applied to the rib and ring by proportionmg i ne hub and the'ring so that the hub can be pushed to one side of the ring and leave sufficient space at the opposite side to insert all the separators in a group. The hub can then be moved to the center of the ring and the -separators shifted to their permanent positions, with equal spaces between them in which the rolls may then be inserted.

The improvements Will be understood by reference to the "annexed drawing, in which Figure l is an end view of a bearing having the rolls and separators encircled in a loose ring; Fig. 2 is a section on line 2 -2 in Fig. 1; Fig. 3 shows the means of inserting the separators between the ring and hub; Fig. t is a side view and Fig. 5 an edge view of the ring detached; :Fig. 6 is a perspective view of one of the separators Fig. 7 is an elevation of one of the duplex rolls coinplete; Fig. 8 is an elevation of the pin for such duplex rolls; Fig. 9 is a separate head for such pin with shank for attaching it;

and Fig. 10 is a section, like Fig. 2, but the ring shown integral with the casing.

In Figs. 1 to 9, a designates the casing, Z) the hub, 0 an integral ring upon the hub at the middle of its length, and (Z the roll-sectio-ns fitted to' the hub at opposite sides of the rib. c designates the pin to which the roll-sections are fitted, having an integral head at one end and at the other end a sep arate head g with shank it forced tightly into a hole a at theopposite end of the pin. This construction for the rolls is not intended to resist end thrustbut to hold the rolls in place upon the hub within the bearing. The length over both ends ofthe pin is nearly the same as the length of the hub and casing, and the construction thus holds the duplex rolls central upon the hub. A loose ring a is shown fitted between the rollsections in contact with the series of pins 6 and in close proximity to the casing a.

Sheet-metal separators to guide the rolls are formed as U-shaped members, the loop or bottom is of the separator being titted to move upon the hub and having at its opposite edges wings projected outwardly and curved to contact with the outer sides of the rolls. The loop of the separator is formed roll-sections thereon is inserted between two of the separators, and the other roll-section and the head 9 then applied to the pin at the opposite side of the rib c. The shank h of the pin-head g is made to fit with sufficient tightness in the hole in the pin to hold the roll-sections securely together upon the pin in the normal operation of the bearmg.

the ring between the roll-sections is shown at n integral with the casing. It will be observed in Figs. 1 and 6, that'eaoh separator has a fiat base It in which the transverse notch Z isformed which engages the rib 0 ,across the entire width of such base, and

i the wings of the separator contact with the rolls at some distance above such base, so that they are capable of yielding elastically if the metal be made of suitable thickness.

It, is common to use separators between rolls in the roller bearing, but my construction difiersfrom others in the U-shape of 'the separators by'which each of them is provided with a foot to move upon the hub and with two wings extended outwardly from the foot to embrace the outer sides of the rolls and are, in practice, made with a sufficient degree of flexibility to exert a slight elastic pressure, upon the rolls. Above their point of contact, the wings are curved to fit the sides of the rolls thus forming a very large wearing surface. By making the separator wings elastic, a closer contact with the rolls can be permitted than if they were made of rigid material. and such close fitting can be secured without the accurate workmanship which is required if a rigid guide be fitted to a rigid roll. The construction thus furnishes an efficient guide for the rolls at a low cost, and avoids the entire expense of providing a cage to embrace the .rolls and guide them .in their movements.

The construction of the duplex rolls with separate sections connected tggether by a central pin'enables the rolls. to be assembled upon a ribbed hub within an outer .ring,

Copies of this patent may be obtained for With the modification shown in Fig. 10,

Having thus set forth the nature of the said invention what is claimed herein is 1. In a roller bearing, the combination,

with a cylindricalcasing and a cylindrical hub having a guide-rib thereon, of a series of duplex rolls having. roll-sections fitted to the hub at opposite sideg of the rib, and a series of U-shaped sheet-metal separators having each a foot adapted to move upon the hub and notched to engage the rib, and having elastic wings extended 'outwardly from its opposite edges and curved to fit the outer sides of the rolls.

2. In a roller bearing, the combination, with thecylindrical casing and a cylindrical hub. having a guide-rib thereon, of a series of duplex rolls consisting each of a pin with heads and roll-sections fitted to the hub at opposite sides-of the ribs and a series of U-shaped separators, having each a foot adapted to move uponthe hub and notched to engage the rib, and having elastic wings extended outwardlyfrom its opposite edges and curved to fit the outer sides of the rolls.

3. In a roller bearing, the combination, with a cylindrical casing and a cylindrical hub having a guide-rib thereon, ofa series of duplex rolls having roll-sections fitted to the hubs at opposite sides of the rib, a ring fitted between the roll-sections next the casing and a series of U-shaped sheet-metal separators notched to engage the rib and the ring and hub and subsequent shifting to their operative positions.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHARLES WVitnesses G.- C. S run'rs, E. zLLIAMs.

s. LOOKWOOD.

five cents each, by addressing the G ommissioner of Patents, Washington, D. G.

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